SEARCH Articles Figures Tables 5,10-Methenyl-tetrahydrofolates 5,10-Methenyl-tetrahydrofolates 5.10- Methenyl tetrahydrofolate cyclohydrolase 5.10- Methenyl-5,6,7,8-tetrahydrofolic acid 5.10- Methenyl-5,6,7,8-tetrahydrofolic acid chloride hydrochloride dihydrate Methenylation Tetrahydrofolate Tetrahydrofolates